#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <string>
#include <stdio.h>
using namespace std;

const int AMNT=50;
char filename[50];
ifstream inputfile;
int loginattempt =1;

typedef char mychar;
mychar FirstLine[AMNT];
mychar SecondLine[AMNT];
mychar ThirdLine[AMNT];

struct UserRecord
{
    string Username;
    string Password;
    char pin[20];

}a;

void wrong_input()
{
    loginattempt =4;
    cout<<"Wrong input";
    system("pause");
}
void Open_Message()
{
    cout<<"------------------------------"<<endl;
    cout<<"Welcome to MyGreatWebsite.com!"<<endl;
    cout<<"Please enter the following:"<<endl;
    cout<<"------------------------------"<<endl;

}
void Read_Input()
{
    //struct UserRecord a;
    cout<<"Username:"<<endl;
    cin>>a.Username;
    cout<<"Password:"<<endl;
    cin>>a.Password;
    cout<<"PIN:"<<endl;
    //cin>>a.pin;
    int pin;
    if(cin>>pin){
        //sprintf(a.pin, 20, "%d", pin);
        cout<<"======================="<<endl;
		cout<<"Input is "<<endl;
        cout<<"Username: "<<a.Username<<endl;
        cout<<"Password: "<<a.Password<<endl;
        cout<<"PIN: "<<a.pin<<endl;
		cout<<"======================="<<endl;
    }
    else
    {
        wrong_input();

    }


}

int main(void)
{


    //struct UserRecord a;
    Open_Message();
    Read_Input();

    //test open file for reading...
    inputfile.open("users.txt");
    //if not the end of file, do...
    if(!inputfile.eof())
    {
        //cout<<"\nThe first line of text is: \n";
        inputfile.getline(FirstLine, 50);
       // cout<<FirstLine<<'\n';
       // cout<<"The second line of text is: \n";
        inputfile.getline(SecondLine, 50);
        //cout<<SecondLine<<endl;
        //cout<<"The third line of text is: \n";
        inputfile.getline(ThirdLine, 50);
        //cout<<ThirdLine<<endl;

        string z= a.pin;
        if (FirstLine==a.Username && SecondLine == a.Password && ThirdLine==z){      // if login data is found
            cout << "Successful login! Welcome " << a.Username << endl;
        }

        else    // if login data is not found
        {
            if(loginattempt<=3){
                cout << "\nUsername and/or password incorrect!\n\n\n\n";
				cout<<"Please try again"<<endl;
                loginattempt++;
                Read_Input();
            }
            else
            {
                cout << "\nUsername and/or password incorrect!\n\n\n\n";
            }
        }
    }
    system("pause");
    return 0;
}